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Frankly, ist is a long time ago that i have been engaged in Kolab3/Univention systems, but i believe that UCS still is based on Kolab3. At that time the openldap source code had been modified. In particular schema.c, schema_init.c and schema_prep.c. This modification required a new private core.schema file.
But doesn't that mean it's basically impossible to run a stock OpenLDAP by copying the UCS schemas and data?
With regard to your your effort to modify config database, the appropriate database naming context is cn=config,cn=schema
I am not sure what this exactly means for my task :)
I am currently trying to import the UCS exported LDIF into the other (stock) OpenLDAP.
Interestingly, I now cannot add anything because of this error: mdb_id2entry_put: mdb_put failed: MDB_KEYEXIST: Key/data pair already exists(-30799) „dc=my-domain,dc=mytld“
When I slapcat the target LDAP, I see one entry regarding the dc. If I try to delete it using ldapdelete, this fails with „no such object“.
Thanks in advance,
Jens